The S1 lantern combines aluminium’s clean lines with exceptional thermal performance and features our innovative Thermlock^® multi-chamber technology to keep you and your property well insulated against the worst of the UK weather. This coupled to high performance 28mm glazing means our lantern roofs offer class leading thermal performance, far superior to traditional polyamide systems based around 24mm glazing. A unique co-extruded perimeter seal also ensures draughts and rain are kept safely outside. 28mm glazing also allows acoustic dampening glass to be fitted if required.

The innovative construction of the S1 system eliminates the security weaknesses of traditional lantern designs. Features such as anti-tamper screws, enclosed anti-tamper glazing, security tape and our patent pending glass lock, alongside our unique high security ridge end, ensure there isn’t an easy way to enter your property via your flat roof lantern. All of these innovative features combined make Sheerline’s S1 system the UK’s most secure aluminium lantern roof*.
So if you are looking for a lantern that comes with extra peace of mind as standard – then we have you covered.

^{*Mainstream residential roof lantern – not utilising bonded glass}

This upgrade adds an extra layer of defence ensuring that your S1 aluminium roof lantern is secure enough to withstand opportunist criminals, providing extra peace of mind.

Additional security clamping plates, lock laminated glass panels in place, preventing them from being lifted and removed by would-be intruders*.

This optional security upgrade is invisible on finished roofs and doesn’t compromise the stylish design or thermal performance that Sheerline products are known for.

^{*Based on SBD’s test criteria}

With a sleek minimalist design that sits perfectly flush with S1’s discreet rafter bars, and with powered actuators that are intelligently automated, Sheerline has reimagined roof vents, bringing them into the 21st century at last. Dispensing with the need for muntin bars, which are prone to issues, SheerVent® offers reliable ventilation without the risk of leaks.